Do you need an antenna for a digital television?
Do you need antenna to receive digital signals on LCD TV the TV has a built in HDTuner Can we use indoor antenna?
All TVs including new ATSC Digital ones use the same frequencies as older NTSC Analog sets. An amplified antenna is recommended because there is a threshold where a weak analo…g signal will be visible (with considerable static) but a digital tuner will not have sufficient strength to display a digital (no noise or static) picture. Outdoor roof Antennas work great as well, you don't need an HDTV antenna, discount stores should have one for around $30.
Yes, but to a very limited extent. . The most common indoor antennas generally may have rabbit ears, discs, and dials. The rabbit ears, contrary to popular belief, get the b…est directional signal when they are laid flat with both sides sticking straight out, perpindicular on a plane parallel with the earth, and perpindicular to the line from the broadcasting tower. . The length matters, too, but it depends upon which station is being received. You can set the length in the middle, to the stations you like best, or adjust it for optimum reception for each channel. Loops should be arranged so that the plane that intersects the entire loop is perpindicular to the line from the broadcasting tower. Discs generally are plastic covered loops and should be arranged the same way. Dials make some adjustment in the electrical properties of the antenna. Try each dial position, do a full channel scan, and mark the positions that pull in maximum channels. Then narrow it down from there by watching the channels for a while. Now with that said, these rabbit-ear, loop, disc, dial antennas are not particularly directional because they do not make up for shadow signals that bounce off mountains and trees and buildings (whereas truly directional antennas, outdoor antennas and higher quality directional indoor antennas make compensations for these extra signals.). If the reception is still not satisfactory, then look for an antenna that is truly directional, omnidirectional, outdoor, or has a signal boost. Tuning for digital transmissions is complicated because the picture comes in perfect, not at all, or perfect with sporadic corruptions, which you don't see right away when tuning. For more about selecting an antenna and tuning it, read on... . Going by outdoor antennas (which have definite directionality), antennas specifically marketed as directional have a gun shape to them that you just point. Other indoor antennas are specifically marketed as omni- or multi-directional. With these, there is no problem with aiming. Although they may not be the optimal antennas when all stations are in one direction, they are probably just fine (as I believe they are usually of higher quality than the uni-directional ones.) The information below may also be helpful for aiming and fine-tuning indoor antennas for digital TV reception:. After finding the direction and distance of all the transmitting towers for digital television in the area (from the customized map at www.antennaweb.org), the next step would be to choose an antenna, hook it up, and aim it. . The antenna does not have to be "digital ready". Antennas are pretty much the same for analog and digital TV. (However, it is smart to know the characteristics of digital broadcasts in your area because of the difficulty in tuning to them.) You can start with whatever antenna you have, and if it does not work well enough, then research and buy a more appropriate one for your area. If you have no antenna at all, then try sticking the center wire tip of a cable TV cable into a potato or an orange--just to get an idea of the basic reception in your area. It will last a couple weeks until the vegetable dries out. . You need to be particularly choosy about your antenna if you want to receive channels 2-6, and to a lesser extent for channels 7-13. Channels 14-83 are the easiest to receive digitally, and most any antenna may do for those depending upon the distance and direction. If you are not satisfied with your reception on 2-13, but get 14-83 just fine, then you may want to just be patient rather than investing in an antenna: because of the large degree of difficulty with tuning these stations for digital transmissions, most stations are soon moving to the UHF band, channels 14-83. If you cannot wait, then focus on antennas designed specifically for both VHF and UHF (not only UHF in this case). In deciding whether you need a VHF antenna or not, you must realize that the stations have been renumbered and no longer represent the frequencies they broadcast on. For example, Digital channels 2-1, 2-2, 2-3, 2-4, 3-1, 5-1, 8-1, etc., are not necessarily broadcasted on VHF channels 2-8. To find out the broadcasted channels you must refer to a list like the one at www.antennaweb.org. (However, that website seems to only show the analog and dash-1 digital channels, not the dash-2 thru 5 channels, so another source must be sought). . If all the stations that you want are in the same direction from your house (within 20 degrees or so), then you can use a directional antenna and aim it right at the middle of the stations.. Outdoor antennas come in 2 basic types, directional and multidirectional. Multidirectional antennas do not have to be aimed. To aim a directional outdoor antenna, follow the directions from the manufacturer.. Indoor antennas are another story. They often come with no documentation, either in the box or on the manufacturer's website regarding tuning or aiming. They may only say turn the antenna until you get the best reception. This works fine for analog broadcasts because you can see the difference in quality when you turn the antenna. But digital broadcasts are different because the picture is either perfect or non-existent, or it corrupts at odd times and stops for a while (closed captioning may turn to gibberish, blocks of the picture turn colors or look like lower resolution, the screen freezes, and then a few seconds later it may restart).. To tune an indoor antenna for digital reception the best method may be to try different positions of the rabbit ears, disc, and dial, and write them down methodically, doing a new complete scan for channels each time, and then count and write down how many channels are found each time. This is a better method for digital because the number of channels found is a better indication of signal quality than the visible picture quality. Be sure not to do manual scans because those function only to add new channels not to count the number of channels receivable. This method would work best when all towers are in one direction.. If stations are broadcasting from different directions, then you should write down not only how many stations are detected, but which ones. Then your job is to come up with multiple settings combinations that get all the different stations you want at different times. After you have discovered them all, then do manual scans in each setting (if your TV has that function) to add all the stations. Then, keep a note close to your TV about which settings to use when actually watching each station. You may need only 2 settings to cover all your favorite stations (and in most areas only one setting will probably be satisfactory).. Since modern digital TVs have computers, one function really missing from them (exists in some models?) is a function to evaluate the tuning quality. Wouldn't it be great if your TV reported the signal quality it is receiving for each channel? I am not an engineer, but from what I know of the way digital TV works, it seems like such an easy function that I wonder if it is not already built in to TVs, but just not publicized. I am definitely looking for this function to appear soon.
I get a perfect picture on TV using an antenna. Can not get digital signal to come thru when using either a converter box or a new digital TV. I have following all the instruc…tions carefully and can get no signal for digital. The antenna is new and hooked up correctly. Get perfect analog pictures. Why can't I get a digital picture? DTV signals are for the most part weaker than the old analog signals. Your new antenna needs to be a high gain VHF/UHF type with a built in or add on amplifier at the antenna. Don't forget to use new coax cable between the antenna amp and the TV set. Be sure the antenna is pointed directly at the transmitters, many have been moved. Sometime a rotor is a great help if the transmitters are in different direction's. If you using splitters, etc, they might need to be replaced with ones that will pass UHF (900 MHz) signals.
The short answer is maybe.. An antenna captures signals which are at a frequency the antenna was tuned for.. New Digital signals are being broadcast in the same channel spac…es as were previously assigned to television stations but because many were broadcasting both old and new, their digital signals may have started transmission at the upper channels of the UHF band. Many older antennas were tuned out by channel 64 and the newer range runs up to 158 near 1000 Mhz.. The older televison broadcast was on what used to be Very High Frequency bands.. Channel 6 for example is just below the range of the FM radio band with the video signal around 83 megahertz and the audio at 87. This is why you can here what sounds like TV on some FM radios.. By Channel 14 you have moved to the Ultra High Frequency range. This is where many police, fire, and ems radios operate in metropolitan areas around 470 Mhz.. The lower the frequency the longer the antenna is needed.. Cellphones operate mostly around 2000 Mhz or 2 "Gigahertz". You see what length antenna they need!. I don't sell antennas so this isn't a pitch. The new disc antennas "may" provide you a better signal because they are designed to be compatible with current HD technology. In addition, the new disc antennas are low profile and have better wind and weather resistance.. Some stations have been careful to make sure the viewers in their area are able to continue using the same equipment with the addition of a converter box to get their channel by keeping their new signal close in the same channel bandwidth as the old analog signal. This will allow the older antennas to pickup the hd signal unimpeded.. The remaining issue of course is the converter box which decodes the digital signal into an analog television. This is a must have in order to get the new signal on an older TV.. I would keep my eye out around New Years to see if retailers are pairing Converters with better antennas at a bundled price. And don't forget to log on to https://www.dtv2009.gov for savings coupons on digital converters.. Keep your eyes open for bargains.. An Amateur Radio Operator
No. In fact, there really is no such thing as a "digital" antenna. \n. \nCompanies that make TV antennas put things like "HD ready" or "Digital TV ready" as a marketing sch…eme to get consumers to upgrade or replace their existing TV antennas.\n. \nThe truth is this: There is no difference between antennas used for analog TV and antennas used for digital TV. Digital TV channels operate on the same frequencies as analog TV channels. Digital TV just uses less bandwidth due to the ability to compress the signal.\n. \nYou may find that you do need a better antenna, however, if you watch any stations with a weak signal. This is because a poor digital signal causes the picture and sound to break up. It is much more frustrating to watch TV with "broken up" digital video and audio than an analog signal with "snowy" video and audio.
The TV needs to be connected to something that provides the signal that you're going to watch. That can be a cable from your cable company, a satellite dish, an antenna, or ju…st a DVD player if everything you want to watch is on DVDs.
No, it needs a digital converter box.
All TV sets need a signal input of some type. If you are using Cable TV than you have no need for an antenna in addition. If you don't use Cable, then you'll need an antenna o…f some time, either a Satellite TV antenna, or to pick up broadcast TV stations, roof top antenna or rabbit ears might be all you need.
No you do not need a digital tv if you have a digital antenna. But you will need a digital to analog converter box if you have an analog tv and a digital antenna.
No you don't, if you have a good reception with your analogue antenna you can connect it to your Digital TV and it will allow you to see digital channels including HDTV. There… is a trend by manufacturers to add 'digital' in front of devices in order to sell them. There is nothing 'digital' about an aerial, there are no embedded electronics. Having said that, there is a recommended type of aerial design, which suits the digital broadcast better. You need a 'wide band' aerial for best results. This is because the multiplexed, digital channels, in any given area, cover the whole spectrum of the UHF band, from channel 21 to 69. Your aerial needs to be sensitive across this wide band. Previously, with analogue, each region grouped the 4 or 5 channels together in one small part of the band (to stop interference from other regions). The antenna could be made cheaper and smaller if it was restricted to one small part of the band. UHF aerials have colour coded plugs in the end of the reflector support, to show the part o fthe band covered. Wide band aerials are black. If you are missing whole blocks of digital channels, it could be that your aerial isn't wide band. If you get all stations with no freezing or pixellating, job done, don't fix it.
The digital TV antennas were made when the analog satellites for TVs went to a Digital satellite. With a converter box and the digital antennas it still makes it possible to u…se TV that still use the old rabbit ears.
Comcast will provide you with a digital tv box that allows your television to receive the digital signal and therefore you won't need the digital tv antenna.
The best digital tv antenna usually depends on where one lives and whether one lives in a house or an apartment building. Some of the antennas usually offered are Antennas Dir…ect DB2, Channel Master 4220HD, and Eagle Aspen DTV2BUHF
Yes it will.
You may find digital TV antennae at any retailers that sell TV sets.There are also many sites on line that sell antenna also, this is the best answer I can give on this quest…ion. I wish you luck.
Digital antennae for televisions are widely available at both retail locations and online sites. Wal-Mart, Target, Amazon, and eBay, for example, all stock this item.